a Quick one but Diesel Legends takes place when head codes were still in use before being replaced by simple Marker lights like on NTP, the marker lights applies to the Class 47 Blu and Class 40 with the Headcode box and Class 31 as of Current, well the Class 47 Blu and the Class 31 gets Layers onto DL so i think a thing that it would be nice if there is an Option to switch between the Marker Lights and 4-Digit Headcodes maybe via looking at the Headcode box and Clicking it, you could also give us the option to change number on the headcode on our own on these and Existing locos that use it like the Class 47 Green. yea it was quick im out.